jQuery Tree Multiselect

This plugin allows you to replace a select element with a sweet treeview element.

Requires jQuery v1.8+

Demo

My website has a simple demo running.

Usage

$("select").treeMultiselect();

Option Attribute name	Description
data-section (required)	The section the option will be in; can be nested
data-description	A description of the attribute; will be shown on the multiselect
data-index	For pre-selected options, display options in this order, lowest index first

Your data-section can have multiple section names, separated by the sectionDelimiter option.

Ex. data-section="top/middle/inner" will show up as

• top
  • middle
    • inner
      • your option

Options

You can pass in options like treeMultiselect(options). It is an object where you can set the following features:

Option name	Default	Description
allowBatchSelection	true	Sections have checkboxes which when checked, check everything within them
collapsible	true	Adds collapsibility to sections
sortable	false	Selected options can be sorted by dragging (requires jQuery UI)
sectionDelimiter	/	Separator between sections in the select option data-section attribute
showSectionOnSelected	true	Show section name on the selected items
startCollapsed	false	Activated only if collapsible is true; sections are collapsed initially

Installation

Load jquery.tree-multiselect.min.js on to your web page. The css file is optional (but recommended).

Custom styling

So, you want to exercise your css-fu. Alright then.

The plugin adds a div.tree-multiselect immediately after the specified select. The hierarchy is shown below.

• div.tree-multiselect
  • div.selections
    • a lot of div.section, each of which has
      • div.title, which has
        • span.collapse-section holding the collapsible indicators if collapsibility is enabled
        • input of type checkbox for selection if allowBatchSelection is enabled
        • the title text
      • a lot of div.item, containing
        • input of type checkbox for selection
        • the item text
      • and possibly more div.section
  • div.selected
    • a lot of div.item, each containing...
      • span.remove-selected holding the indicator to remove element from selection
      • the option name
      • span.section-name if showSectionOnSelected is enabled, showing the section name(s)

Testing

1. npm install
2. Now I hope you've got grunt-cli installed in some place you know about, because we're about to...
3. grunt
4. huff and puff the tests go
5. The mettle of your code shall tested in the Battles of QUnit. Shall the dragon be slain and the damsel rescued, from the ashes will rise a green trophy, emblazoned on it the shield of OK, a legendary paladin enshrined in the kingdom halls.
6. But that probably won't happen. If not, the Architect will fire up another simulation and you shall patch your hero's weaknesses.

License

MIT licensed.